Move aom source to a sub-directory under media/libaom

There is no damned reason to treat this differently than any other media lib given its license and there never was.

1 files changed, 403 insertions, 0 deletions

diff --git a/media/libaom/src/av1/common/cdef.c b/media/libaom/src/av1/common/cdef.c
new file mode 100644
index 000000000..e9e2b0e42
--- /dev/null
+++ b/media/libaom/src/av1/common/cdef.c
@@ -0,0 +1,403 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <math.h>
+#include <string.h>
+
+#include "config/aom_scale_rtcd.h"
+
+#include "aom/aom_integer.h"
+#include "av1/common/cdef.h"
+#include "av1/common/cdef_block.h"
+#include "av1/common/onyxc_int.h"
+#include "av1/common/reconinter.h"
+
+int sb_all_skip(const AV1_COMMON *const cm, int mi_row, int mi_col) {
+  int maxc, maxr;
+  int skip = 1;
+  maxc = cm->mi_cols - mi_col;
+  maxr = cm->mi_rows - mi_row;
+
+  maxr = AOMMIN(maxr, MI_SIZE_64X64);
+  maxc = AOMMIN(maxc, MI_SIZE_64X64);
+
+  for (int r = 0; r < maxr; r++) {
+    for (int c = 0; c < maxc; c++) {
+      skip =
+          skip &&
+          cm->mi_grid_visible[(mi_row + r) * cm->mi_stride + mi_col + c]->skip;
+    }
+  }
+  return skip;
+}
+
+static int is_8x8_block_skip(MB_MODE_INFO **grid, int mi_row, int mi_col,
+                             int mi_stride) {
+  int is_skip = 1;
+  for (int r = 0; r < mi_size_high[BLOCK_8X8]; ++r)
+    for (int c = 0; c < mi_size_wide[BLOCK_8X8]; ++c)
+      is_skip &= grid[(mi_row + r) * mi_stride + (mi_col + c)]->skip;
+
+  return is_skip;
+}
+
+int sb_compute_cdef_list(const AV1_COMMON *const cm, int mi_row, int mi_col,
+                         cdef_list *dlist, BLOCK_SIZE bs) {
+  MB_MODE_INFO **grid = cm->mi_grid_visible;
+  int maxc = cm->mi_cols - mi_col;
+  int maxr = cm->mi_rows - mi_row;
+
+  if (bs == BLOCK_128X128 || bs == BLOCK_128X64)
+    maxc = AOMMIN(maxc, MI_SIZE_128X128);
+  else
+    maxc = AOMMIN(maxc, MI_SIZE_64X64);
+  if (bs == BLOCK_128X128 || bs == BLOCK_64X128)
+    maxr = AOMMIN(maxr, MI_SIZE_128X128);
+  else
+    maxr = AOMMIN(maxr, MI_SIZE_64X64);
+
+  const int r_step = mi_size_high[BLOCK_8X8];
+  const int c_step = mi_size_wide[BLOCK_8X8];
+  const int r_shift = (r_step == 2);
+  const int c_shift = (c_step == 2);
+
+  assert(r_step == 1 || r_step == 2);
+  assert(c_step == 1 || c_step == 2);
+
+  int count = 0;
+
+  for (int r = 0; r < maxr; r += r_step) {
+    for (int c = 0; c < maxc; c += c_step) {
+      if (!is_8x8_block_skip(grid, mi_row + r, mi_col + c, cm->mi_stride)) {
+        dlist[count].by = r >> r_shift;
+        dlist[count].bx = c >> c_shift;
+        dlist[count].skip = 0;
+        count++;
+      }
+    }
+  }
+  return count;
+}
+
+void copy_rect8_8bit_to_16bit_c(uint16_t *dst, int dstride, const uint8_t *src,
+                                int sstride, int v, int h) {
+  for (int i = 0; i < v; i++) {
+    for (int j = 0; j < h; j++) {
+      dst[i * dstride + j] = src[i * sstride + j];
+    }
+  }
+}
+
+void copy_rect8_16bit_to_16bit_c(uint16_t *dst, int dstride,
+                                 const uint16_t *src, int sstride, int v,
+                                 int h) {
+  for (int i = 0; i < v; i++) {
+    for (int j = 0; j < h; j++) {
+      dst[i * dstride + j] = src[i * sstride + j];
+    }
+  }
+}
+
+static void copy_sb8_16(AOM_UNUSED AV1_COMMON *cm, uint16_t *dst, int dstride,
+                        const uint8_t *src, int src_voffset, int src_hoffset,
+                        int sstride, int vsize, int hsize) {
+  if (cm->seq_params.use_highbitdepth) {
+    const uint16_t *base =
+        &CONVERT_TO_SHORTPTR(src)[src_voffset * sstride + src_hoffset];
+    copy_rect8_16bit_to_16bit(dst, dstride, base, sstride, vsize, hsize);
+  } else {
+    const uint8_t *base = &src[src_voffset * sstride + src_hoffset];
+    copy_rect8_8bit_to_16bit(dst, dstride, base, sstride, vsize, hsize);
+  }
+}
+
+static INLINE void fill_rect(uint16_t *dst, int dstride, int v, int h,
+                             uint16_t x) {
+  for (int i = 0; i < v; i++) {
+    for (int j = 0; j < h; j++) {
+      dst[i * dstride + j] = x;
+    }
+  }
+}
+
+static INLINE void copy_rect(uint16_t *dst, int dstride, const uint16_t *src,
+                             int sstride, int v, int h) {
+  for (int i = 0; i < v; i++) {
+    for (int j = 0; j < h; j++) {
+      dst[i * dstride + j] = src[i * sstride + j];
+    }
+  }
+}
+
+void av1_cdef_frame(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm,
+                    MACROBLOCKD *xd) {
+  const int num_planes = av1_num_planes(cm);
+  DECLARE_ALIGNED(16, uint16_t, src[CDEF_INBUF_SIZE]);
+  uint16_t *linebuf[3];
+  uint16_t *colbuf[3];
+  cdef_list dlist[MI_SIZE_64X64 * MI_SIZE_64X64];
+  unsigned char *row_cdef, *prev_row_cdef, *curr_row_cdef;
+  int cdef_count;
+  int dir[CDEF_NBLOCKS][CDEF_NBLOCKS] = { { 0 } };
+  int var[CDEF_NBLOCKS][CDEF_NBLOCKS] = { { 0 } };
+  int mi_wide_l2[3];
+  int mi_high_l2[3];
+  int xdec[3];
+  int ydec[3];
+  int coeff_shift = AOMMAX(cm->seq_params.bit_depth - 8, 0);
+  const int nvfb = (cm->mi_rows + MI_SIZE_64X64 - 1) / MI_SIZE_64X64;
+  const int nhfb = (cm->mi_cols + MI_SIZE_64X64 - 1) / MI_SIZE_64X64;
+  av1_setup_dst_planes(xd->plane, cm->seq_params.sb_size, frame, 0, 0, 0,
+                       num_planes);
+  row_cdef = aom_malloc(sizeof(*row_cdef) * (nhfb + 2) * 2);
+  memset(row_cdef, 1, sizeof(*row_cdef) * (nhfb + 2) * 2);
+  prev_row_cdef = row_cdef + 1;
+  curr_row_cdef = prev_row_cdef + nhfb + 2;
+  for (int pli = 0; pli < num_planes; pli++) {
+    xdec[pli] = xd->plane[pli].subsampling_x;
+    ydec[pli] = xd->plane[pli].subsampling_y;
+    mi_wide_l2[pli] = MI_SIZE_LOG2 - xd->plane[pli].subsampling_x;
+    mi_high_l2[pli] = MI_SIZE_LOG2 - xd->plane[pli].subsampling_y;
+  }
+  const int stride = (cm->mi_cols << MI_SIZE_LOG2) + 2 * CDEF_HBORDER;
+  for (int pli = 0; pli < num_planes; pli++) {
+    linebuf[pli] = aom_malloc(sizeof(*linebuf) * CDEF_VBORDER * stride);
+    colbuf[pli] =
+        aom_malloc(sizeof(*colbuf) *
+                   ((CDEF_BLOCKSIZE << mi_high_l2[pli]) + 2 * CDEF_VBORDER) *
+                   CDEF_HBORDER);
+  }
+  for (int fbr = 0; fbr < nvfb; fbr++) {
+    for (int pli = 0; pli < num_planes; pli++) {
+      const int block_height =
+          (MI_SIZE_64X64 << mi_high_l2[pli]) + 2 * CDEF_VBORDER;
+      fill_rect(colbuf[pli], CDEF_HBORDER, block_height, CDEF_HBORDER,
+                CDEF_VERY_LARGE);
+    }
+    int cdef_left = 1;
+    for (int fbc = 0; fbc < nhfb; fbc++) {
+      int level, sec_strength;
+      int uv_level, uv_sec_strength;
+      int nhb, nvb;
+      int cstart = 0;
+      curr_row_cdef[fbc] = 0;
+      if (cm->mi_grid_visible[MI_SIZE_64X64 * fbr * cm->mi_stride +
+                              MI_SIZE_64X64 * fbc] == NULL ||
+          cm->mi_grid_visible[MI_SIZE_64X64 * fbr * cm->mi_stride +
+                              MI_SIZE_64X64 * fbc]
+                  ->cdef_strength == -1) {
+        cdef_left = 0;
+        continue;
+      }
+      if (!cdef_left) cstart = -CDEF_HBORDER;
+      nhb = AOMMIN(MI_SIZE_64X64, cm->mi_cols - MI_SIZE_64X64 * fbc);
+      nvb = AOMMIN(MI_SIZE_64X64, cm->mi_rows - MI_SIZE_64X64 * fbr);
+      int frame_top, frame_left, frame_bottom, frame_right;
+
+      int mi_row = MI_SIZE_64X64 * fbr;
+      int mi_col = MI_SIZE_64X64 * fbc;
+      // for the current filter block, it's top left corner mi structure (mi_tl)
+      // is first accessed to check whether the top and left boundaries are
+      // frame boundaries. Then bottom-left and top-right mi structures are
+      // accessed to check whether the bottom and right boundaries
+      // (respectively) are frame boundaries.
+      //
+      // Note that we can't just check the bottom-right mi structure - eg. if
+      // we're at the right-hand edge of the frame but not the bottom, then
+      // the bottom-right mi is NULL but the bottom-left is not.
+      frame_top = (mi_row == 0) ? 1 : 0;
+      frame_left = (mi_col == 0) ? 1 : 0;
+
+      if (fbr != nvfb - 1)
+        frame_bottom = (mi_row + MI_SIZE_64X64 == cm->mi_rows) ? 1 : 0;
+      else
+        frame_bottom = 1;
+
+      if (fbc != nhfb - 1)
+        frame_right = (mi_col + MI_SIZE_64X64 == cm->mi_cols) ? 1 : 0;
+      else
+        frame_right = 1;
+
+      const int mbmi_cdef_strength =
+          cm->mi_grid_visible[MI_SIZE_64X64 * fbr * cm->mi_stride +
+                              MI_SIZE_64X64 * fbc]
+              ->cdef_strength;
+      level = cm->cdef_strengths[mbmi_cdef_strength] / CDEF_SEC_STRENGTHS;
+      sec_strength =
+          cm->cdef_strengths[mbmi_cdef_strength] % CDEF_SEC_STRENGTHS;
+      sec_strength += sec_strength == 3;
+      uv_level = cm->cdef_uv_strengths[mbmi_cdef_strength] / CDEF_SEC_STRENGTHS;
+      uv_sec_strength =
+          cm->cdef_uv_strengths[mbmi_cdef_strength] % CDEF_SEC_STRENGTHS;
+      uv_sec_strength += uv_sec_strength == 3;
+      if ((level == 0 && sec_strength == 0 && uv_level == 0 &&
+           uv_sec_strength == 0) ||
+          (cdef_count = sb_compute_cdef_list(cm, fbr * MI_SIZE_64X64,
+                                             fbc * MI_SIZE_64X64, dlist,
+                                             BLOCK_64X64)) == 0) {
+        cdef_left = 0;
+        continue;
+      }
+
+      curr_row_cdef[fbc] = 1;
+      for (int pli = 0; pli < num_planes; pli++) {
+        int coffset;
+        int rend, cend;
+        int pri_damping = cm->cdef_pri_damping;
+        int sec_damping = cm->cdef_sec_damping;
+        int hsize = nhb << mi_wide_l2[pli];
+        int vsize = nvb << mi_high_l2[pli];
+
+        if (pli) {
+          level = uv_level;
+          sec_strength = uv_sec_strength;
+        }
+
+        if (fbc == nhfb - 1)
+          cend = hsize;
+        else
+          cend = hsize + CDEF_HBORDER;
+
+        if (fbr == nvfb - 1)
+          rend = vsize;
+        else
+          rend = vsize + CDEF_VBORDER;
+
+        coffset = fbc * MI_SIZE_64X64 << mi_wide_l2[pli];
+        if (fbc == nhfb - 1) {
+          /* On the last superblock column, fill in the right border with
+             CDEF_VERY_LARGE to avoid filtering with the outside. */
+          fill_rect(&src[cend + CDEF_HBORDER], CDEF_BSTRIDE,
+                    rend + CDEF_VBORDER, hsize + CDEF_HBORDER - cend,
+                    CDEF_VERY_LARGE);
+        }
+        if (fbr == nvfb - 1) {
+          /* On the last superblock row, fill in the bottom border with
+             CDEF_VERY_LARGE to avoid filtering with the outside. */
+          fill_rect(&src[(rend + CDEF_VBORDER) * CDEF_BSTRIDE], CDEF_BSTRIDE,
+                    CDEF_VBORDER, hsize + 2 * CDEF_HBORDER, CDEF_VERY_LARGE);
+        }
+        /* Copy in the pixels we need from the current superblock for
+           deringing.*/
+        copy_sb8_16(cm,
+                    &src[CDEF_VBORDER * CDEF_BSTRIDE + CDEF_HBORDER + cstart],
+                    CDEF_BSTRIDE, xd->plane[pli].dst.buf,
+                    (MI_SIZE_64X64 << mi_high_l2[pli]) * fbr, coffset + cstart,
+                    xd->plane[pli].dst.stride, rend, cend - cstart);
+        if (!prev_row_cdef[fbc]) {
+          copy_sb8_16(cm, &src[CDEF_HBORDER], CDEF_BSTRIDE,
+                      xd->plane[pli].dst.buf,
+                      (MI_SIZE_64X64 << mi_high_l2[pli]) * fbr - CDEF_VBORDER,
+                      coffset, xd->plane[pli].dst.stride, CDEF_VBORDER, hsize);
+        } else if (fbr > 0) {
+          copy_rect(&src[CDEF_HBORDER], CDEF_BSTRIDE, &linebuf[pli][coffset],
+                    stride, CDEF_VBORDER, hsize);
+        } else {
+          fill_rect(&src[CDEF_HBORDER], CDEF_BSTRIDE, CDEF_VBORDER, hsize,
+                    CDEF_VERY_LARGE);
+        }
+        if (!prev_row_cdef[fbc - 1]) {
+          copy_sb8_16(cm, src, CDEF_BSTRIDE, xd->plane[pli].dst.buf,
+                      (MI_SIZE_64X64 << mi_high_l2[pli]) * fbr - CDEF_VBORDER,
+                      coffset - CDEF_HBORDER, xd->plane[pli].dst.stride,
+                      CDEF_VBORDER, CDEF_HBORDER);
+        } else if (fbr > 0 && fbc > 0) {
+          copy_rect(src, CDEF_BSTRIDE, &linebuf[pli][coffset - CDEF_HBORDER],
+                    stride, CDEF_VBORDER, CDEF_HBORDER);
+        } else {
+          fill_rect(src, CDEF_BSTRIDE, CDEF_VBORDER, CDEF_HBORDER,
+                    CDEF_VERY_LARGE);
+        }
+        if (!prev_row_cdef[fbc + 1]) {
+          copy_sb8_16(cm, &src[CDEF_HBORDER + (nhb << mi_wide_l2[pli])],
+                      CDEF_BSTRIDE, xd->plane[pli].dst.buf,
+                      (MI_SIZE_64X64 << mi_high_l2[pli]) * fbr - CDEF_VBORDER,
+                      coffset + hsize, xd->plane[pli].dst.stride, CDEF_VBORDER,
+                      CDEF_HBORDER);
+        } else if (fbr > 0 && fbc < nhfb - 1) {
+          copy_rect(&src[hsize + CDEF_HBORDER], CDEF_BSTRIDE,
+                    &linebuf[pli][coffset + hsize], stride, CDEF_VBORDER,
+                    CDEF_HBORDER);
+        } else {
+          fill_rect(&src[hsize + CDEF_HBORDER], CDEF_BSTRIDE, CDEF_VBORDER,
+                    CDEF_HBORDER, CDEF_VERY_LARGE);
+        }
+        if (cdef_left) {
+          /* If we deringed the superblock on the left then we need to copy in
+             saved pixels. */
+          copy_rect(src, CDEF_BSTRIDE, colbuf[pli], CDEF_HBORDER,
+                    rend + CDEF_VBORDER, CDEF_HBORDER);
+        }
+        /* Saving pixels in case we need to dering the superblock on the
+            right. */
+        copy_rect(colbuf[pli], CDEF_HBORDER, src + hsize, CDEF_BSTRIDE,
+                  rend + CDEF_VBORDER, CDEF_HBORDER);
+        copy_sb8_16(
+            cm, &linebuf[pli][coffset], stride, xd->plane[pli].dst.buf,
+            (MI_SIZE_64X64 << mi_high_l2[pli]) * (fbr + 1) - CDEF_VBORDER,
+            coffset, xd->plane[pli].dst.stride, CDEF_VBORDER, hsize);
+
+        if (frame_top) {
+          fill_rect(src, CDEF_BSTRIDE, CDEF_VBORDER, hsize + 2 * CDEF_HBORDER,
+                    CDEF_VERY_LARGE);
+        }
+        if (frame_left) {
+          fill_rect(src, CDEF_BSTRIDE, vsize + 2 * CDEF_VBORDER, CDEF_HBORDER,
+                    CDEF_VERY_LARGE);
+        }
+        if (frame_bottom) {
+          fill_rect(&src[(vsize + CDEF_VBORDER) * CDEF_BSTRIDE], CDEF_BSTRIDE,
+                    CDEF_VBORDER, hsize + 2 * CDEF_HBORDER, CDEF_VERY_LARGE);
+        }
+        if (frame_right) {
+          fill_rect(&src[hsize + CDEF_HBORDER], CDEF_BSTRIDE,
+                    vsize + 2 * CDEF_VBORDER, CDEF_HBORDER, CDEF_VERY_LARGE);
+        }
+
+        if (cm->seq_params.use_highbitdepth) {
+          cdef_filter_fb(
+              NULL,
+              &CONVERT_TO_SHORTPTR(
+                  xd->plane[pli]
+                      .dst.buf)[xd->plane[pli].dst.stride *
+                                    (MI_SIZE_64X64 * fbr << mi_high_l2[pli]) +
+                                (fbc * MI_SIZE_64X64 << mi_wide_l2[pli])],
+              xd->plane[pli].dst.stride,
+              &src[CDEF_VBORDER * CDEF_BSTRIDE + CDEF_HBORDER], xdec[pli],
+              ydec[pli], dir, NULL, var, pli, dlist, cdef_count, level,
+              sec_strength, pri_damping, sec_damping, coeff_shift);
+        } else {
+          cdef_filter_fb(
+              &xd->plane[pli]
+                   .dst.buf[xd->plane[pli].dst.stride *
+                                (MI_SIZE_64X64 * fbr << mi_high_l2[pli]) +
+                            (fbc * MI_SIZE_64X64 << mi_wide_l2[pli])],
+              NULL, xd->plane[pli].dst.stride,
+              &src[CDEF_VBORDER * CDEF_BSTRIDE + CDEF_HBORDER], xdec[pli],
+              ydec[pli], dir, NULL, var, pli, dlist, cdef_count, level,
+              sec_strength, pri_damping, sec_damping, coeff_shift);
+        }
+      }
+      cdef_left = 1;
+    }
+    {
+      unsigned char *tmp = prev_row_cdef;
+      prev_row_cdef = curr_row_cdef;
+      curr_row_cdef = tmp;
+    }
+  }
+  aom_free(row_cdef);
+  for (int pli = 0; pli < num_planes; pli++) {
+    aom_free(linebuf[pli]);
+    aom_free(colbuf[pli]);
+  }
+}